| Millennium: | 1st millennium |
|---|---|
| Centuries: | 6th century – 7th century – 8th century |
| Decades: | 630s 640s 650s – 660s – 670s 680s 690s |
| Years: | 664 665 666 – 667 – 668 669 670 |
| 667 by topic | |
| Politics | |
| State leaders – Sovereign states | |
| Birth and death categories | |
| Births – Deaths | |
| Establishment and disestablishment categories | |
| Establishments – Disestablishments | |
| Gregorian calendar | 667 DCLXVII |
| Ab urbe condita | 1420 |
| Armenian calendar | 116 ԹՎ ՃԺԶ |
| Assyrian calendar | 5417 |
| Bahá'í calendar | -1177–-1176 |
| Bengali calendar | 74 |
| Berber calendar | 1617 |
| English Regnal year | N/A |
| Buddhist calendar | 1211 |
| Burmese calendar | 29 |
| Byzantine calendar | 6175–6176 |
| Chinese calendar | 丙寅年十二月初二日 (3303/3363-12-2) — to —
丁卯年十二月十一日(3304/3364-12-11) |
| Coptic calendar | 383–384 |
| Ethiopian calendar | 659–660 |
| Hebrew calendar | 4427–4428 |
| Hindu calendars | |
| - Vikram Samvat | 723–724 |
| - Shaka Samvat | 589–590 |
| - Kali Yuga | 3768–3769 |
| Holocene calendar | 10667 |
| Iranian calendar | 45–46 |
| Islamic calendar | 46–47 |
| Japanese calendar | |
| Korean calendar | 3000 |
| Minguo calendar | 1245 before ROC 民前1245年 |
| Thai solar calendar | 1210 |
Year 667 (DCLXVII) was a common year starting on Friday (link will display the full calendar) of the Julian calendar. The denomination 667 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.